Pulse sounding with closely spaced receivers as a tool for measuring atmospheric motions and fine structure in the ionosphere
Subtitle: VIII. application to aircraft signals
By: W. Pfister, G. Sales
Series: Environmental Research Papers -- no. 507; Environmental research papers (Hanscom AFB, Mass.) -- no. 507
Publisher: United States Air Force, Air Force Systems Command, Air Force Cambridge Research Laboratories
Published: 1975
Place of publication: Bedford, Mass
Language: eng
Number of pages: 23
Subjects: Ionosphere; Atmospheric circulation
Description: Signals transmitted from an aircraft and received on the ground are characterized by a Doppler shift which falls outside the principal range of the instrument from -2 to +2 Hz. A data processing technique combines the Fourier spectra of three interlaced sets of data in such a way that the shifted Doppler range includes the spectrum of the aircraft signal. The shift can be either preselected or determined from the signal itself. Printouts of Fourier spectra computed by both methods are compared.
Notes: "AFCRL-TR-75-0193."

"Ionospheric Physics Laboratory Project 5631."

"& April 1975."

Cover title.

Includes bibliographical references (p. 23).